IANAL A quick read through of the Wikipedia article for double jeopardy[0] describes implications and legal tests for double jeopardy. The shortest summary I

IANAL A quick read through of the Wikipedia article for double jeopardy[0] describes implications and legal tests for double jeopardy. The shortest summary I can make of that article that seems relevant is this: If you need exactly the same set of facts to prove crime A as crime B, or fewer facts than A to prove B, then they are the same crime. If crime B needs one fact not required for A, then it is a different crime for purposes of double jeopardy. Based on this reading, it appears that a federal pardon would not imply no state charges. Or, a federal pardon leaves the question of state charges an open one. [0] https://en.m.wikipedia.org/wiki/Double_Jeopardy_Clause https://en.m.wikipedia.org/wiki/Double_Jeopardy_Clause